# Randolf R-F

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bio website location Bogota, Colombia age 28 member for 3 years, 7 months seen Dec 16 '14 at 14:12 profile views 104

"When you're doing something you're passionate about, stress becomes a feature not a bug."

# 91 Actions

 Feb24 comment Pretty simple question about running time Thanks @ArturoMagidin didn't know about Lambert's W function. Actually that's the solution. Feb24 asked Pretty simple question about running time Feb18 comment Why this subset of $\mathbb{R}^3$ is not a subspace? So, It was kinda simple :( I'm sorry but didn't knew how to test it. Feb18 revised Why this subset of $\mathbb{R}^3$ is not a subspace? deleted 4 characters in body Feb18 asked Why this subset of $\mathbb{R}^3$ is not a subspace? Feb16 comment Orthogonal vectors with given magnitude Ummm now I see, the free parameters are the parameters of the general solution. Thanks again. Feb16 awarded Commentator Feb16 comment Orthogonal vectors with given magnitude Thank you very much David. Just one more thing. Why do you say the system has two free parameters? I mean, doesn't has three including also v3? Feb16 accepted Orthogonal vectors with given magnitude Feb16 asked Orthogonal vectors with given magnitude Feb5 comment If $A^2 = I$ (Identity Matrix) then $A = \pm I$ Thank you @Martin Wanvik, pretty clear explanation. Feb5 accepted If $A^2 = I$ (Identity Matrix) then $A = \pm I$ Feb5 asked If $A^2 = I$ (Identity Matrix) then $A = \pm I$ Aug26 accepted Power a Matrix (Without calculating) Aug26 revised Power a Matrix (Without calculating) added 154 characters in body Aug26 comment Power a Matrix (Without calculating) Well indeed I have the "feeling" that given that 1 only changes on its sig then its the same the power of 3 that the power of 2001 but I'm not sure. I'm correct? Aug26 asked Power a Matrix (Without calculating) Aug24 comment Cartesian equation with just one vector Thanks joriki. Do you know any book maybe more soft than fraleigh's linear algebra (with I'm currently using 'cause was the used where I get my bachelors degree). I'm a lawyer that (for weird reasons) build software and likes maths and want to self-study them as much as I can. I don't know if the book election was fine but maybe you could provide me a more useful reference. Aug24 accepted Cartesian equation with just one vector Aug24 comment Cartesian equation with just one vector Thanks for the reply Shawn, so the cartesian equation can be seen as a parametric equation?